MELPS Instruction Set

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MELPS Instruction Set

Postby Helen » Sun Aug 21, 2005 5:37 pm

I know this is slightly off topic (of the board that is)......

But I'm trying to understand the software in the Early Subaru ECUs, specifically the JECS unit that was in the EJ20 Imprezza Turbo form 93 to 96.

I know it's a M37791 which is based on the MELPS M77xx range from Mitsubisihi. But I can't find a copy of the instruction set anywhere.

Anyone got any ideas where I might find one, either that or a disassembler ? I was planning on writing my own, but I'll use a ready made one if I can find one.

I've managed to read out the Rom Image, but without the opcodes, I'm stumped !

Once I've done this one, I'm moving onto the newer ECU's. I've got one on my bench already - but I must finish the early one first !

Thanks

Helen.

:D :D
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Postby maniac91 » Tue Aug 30, 2005 2:04 am

Have a look there : http://www.renesas.com/homepage.jsp (Document Library)
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Postby Jez » Tue Aug 30, 2005 3:00 am

This might help.

Just tried to upload the 7700 series software manual but it failed. I could email it to you if you like :)

Can you help with this at all? http://forums.openecu.org/viewtopic.php?t=118
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